This is an omnibus commit which moves the Citadel Server from crusty old GNU Autotool...

[citadel.git] / citadel / server / modules / notes / serv_notes.c

diff --git a/citadel/server/modules/notes/serv_notes.c b/citadel/server/modules/notes/serv_notes.c
new file mode 100644 (file)
index 0000000..2f32fae
--- /dev/null
+++ b/citadel/server/modules/notes/serv_notes.c
@@ -0,0 +1,155 @@
+/*
+ * Handles functions related to yellow sticky notes.
+ *
+ * Copyright (c) 2007-2022 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "../../sysdep.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <pwd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <time.h>
+#include <sys/wait.h>
+#include <string.h>
+#include <limits.h>
+#include <libcitadel.h>
+#include "../../citadel.h"
+#include "../../server.h"
+#include "../../citserver.h"
+#include "../../support.h"
+#include "../../config.h"
+#include "../../user_ops.h"
+#include "../../database.h"
+#include "../../msgbase.h"
+#include "../../ctdl_module.h"
+
+
+/*
+ * Callback function for serv_notes_beforesave() hunts for a vNote in the MIME structure
+ */
+void notes_extract_vnote(char *name, char *filename, char *partnum, char *disp,
+                  void *content, char *cbtype, char *cbcharset, size_t length,
+                  char *encoding, char *cbid, void *cbuserdata)
+{
+       struct vnote **v = (struct vnote **) cbuserdata;
+
+       if (!strcasecmp(cbtype, "text/vnote")) {
+
+               syslog(LOG_DEBUG, "Part %s contains a vNote!  Loading...\n", partnum);
+               if (*v != NULL) {
+                       vnote_free(*v);
+               }
+               *v = vnote_new_from_str(content);
+       }
+}
+
+
+/*
+ * Before-save hook searches for two different types of notes (legacy Kolab/Aethera notes
+ * and modern vNote format notes) and does its best to learn the subject (summary)
+ * and EUID (uid) of the note for Citadel's own nefarious purposes.
+ */
+int serv_notes_beforesave(struct CtdlMessage *msg, struct recptypes *recp)
+{
+       char *p;
+       int a, i;
+       char uuid[512];
+       struct vnote *v = NULL;
+
+       /* First determine if this room has the "notes" view set */
+
+       if (CC->room.QRdefaultview != VIEW_NOTES) {
+               return(0);                      /* not notes; do nothing */
+       }
+
+       /* It must be an RFC822 message! */
+       if (msg->cm_format_type != 4) {
+               return(0);      /* You tried to save a non-RFC822 message! */
+       }
+       
+       /*
+        * If we are in a "notes" view room, and the client has sent an RFC822
+        * message containing an X-KOrg-Note-Id: field (Aethera does this, as
+        * do some Kolab clients) then set both the Subject and the Exclusive ID
+        * of the message to that.  It's going to be a UUID so we want to replace
+        * any existing message containing that UUID.
+        */
+       strcpy(uuid, "");
+       p = msg->cm_fields[eMesageText];
+       a = msg->cm_lengths[eMesageText];
+       while (--a > 0) {
+               if (!strncasecmp(p, "X-KOrg-Note-Id: ", 16)) {  /* Found it */
+                       safestrncpy(uuid, p + 16, sizeof(uuid));
+                       for (i = 0; uuid[i]; ++i) {
+                               if ( (uuid[i] == '\r') || (uuid[i] == '\n') ) {
+                                       uuid[i] = 0;
+                                       break;
+                               }
+                       }
+
+                       syslog(LOG_DEBUG, "UUID of note is: %s\n", uuid);
+                       if (!IsEmptyStr(uuid)) {
+                               CM_SetField(msg, eExclusiveID, uuid, strlen(uuid));
+
+                               CM_CopyField(msg, eMsgSubject, eExclusiveID);
+                       }
+               }
+               p++;
+       }
+
+       /* Modern clients are using vNote format.  Check for one... */
+
+       mime_parser(CM_RANGE(msg, eMesageText),
+                   *notes_extract_vnote,
+                   NULL, NULL,
+                   &v,         /* user data ptr - put the vnote here */
+                   0
+       );
+
+       if (v == NULL) return(0);       /* no vNotes were found in this message */
+
+       /* Set the message EUID to the vNote UID */
+
+       if ((v->uid) && (!IsEmptyStr(v->uid))) {
+               syslog(LOG_DEBUG, "UID of vNote is: %s\n", v->uid);
+               CM_SetField(msg, eExclusiveID, v->uid, strlen(v->uid));
+       }
+
+       /* Set the message Subject to the vNote Summary */
+
+       if ((v->summary) && (!IsEmptyStr(v->summary))) {
+               CM_SetField(msg, eMsgSubject, v->summary, strlen(v->summary));
+
+               if (msg->cm_lengths[eMsgSubject] > 72) {
+                       strcpy(&msg->cm_fields[eMsgSubject][68], "...");
+                       CM_CutFieldAt(msg, eMsgSubject, 72);
+               }
+       }
+
+       vnote_free(v);
+       
+       return(0);
+}
+
+
+char *ctdl_module_init_notes(void) {
+       if (!threading) {
+               CtdlRegisterMessageHook(serv_notes_beforesave, EVT_BEFORESAVE);
+       }
+       
+       /* return our module name for the log */
+       return "notes";
+}